Drinking cup



FIG. 1 is a top, left side and front perspective view showing a drinking cup of our new invention,

FIG. 2 is a front elevation view thereof,

FIG. 3 is a right side elevation view thereof,

FIG. 4 is a left side elevation view thereof,

FIG. 5 is a rear elevation view thereof,

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings are included for the purpose of illustration and form no part of the claimed design. 

The ornamental design for a drinking cup, as shown and described. 